EP3428478B1 - Appareil amortisseur - Google Patents
Appareil amortisseur Download PDFInfo
- Publication number
- EP3428478B1 EP3428478B1 EP17762897.1A EP17762897A EP3428478B1 EP 3428478 B1 EP3428478 B1 EP 3428478B1 EP 17762897 A EP17762897 A EP 17762897A EP 3428478 B1 EP3428478 B1 EP 3428478B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- seat
- face
- elastic member
- flanged hub
- pressing plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000005540 biological transmission Effects 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
- F16F15/1232—Wound springs characterised by the spring mounting
- F16F15/12326—End-caps for springs
- F16F15/12333—End-caps for springs having internal abutment means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/04—Wound springs
- F16F1/12—Attachments or mountings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/10—Suppression of vibrations in rotating systems by making use of members moving with the system
- F16F15/12—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon
- F16F15/121—Suppression of vibrations in rotating systems by making use of members moving with the system using elastic members or friction-damping members, e.g. between a rotating shaft and a gyratory mass mounted thereon using springs as elastic members, e.g. metallic springs
- F16F15/123—Wound springs
Definitions
- the present invention relates to a damper apparatus used for a clutch disk or the like.
- JP 3381396 B2 discloses a conventional damper apparatus used for a clutch disk or the like.
- a flanged hub and a plate disposed around the flanged hub to face a flange of the flanged hub are elastically linked with each other in a circumferential direction via a spring, and an input from the plate side is transmitted to the flanged hub side via the spring while being buffered by a deflection and shrinkage of the spring.
- EP 2 511 555 A1 discloses a damper apparatus according to the preamble of claim 1.
- the present inventors have found that when in rotational vibration absorption near the beginning of the deflection of the spring, the flange of the flanged hub repeatedly exerts a pressure against and separates from a seat on an end face of the spring, surface sliding occurs between the flange and the seat and the surface sliding causes the unintended hysteresis torque.
- An object of the present invention is to provide a damper apparatus capable of suppressing an unintended hysteresis torque.
- a damper apparatus includes the features of appended claim 1, and notably:
- the gap is formed between the convex face of the seat and the concave face of the pressing plate in the state in which the convex face of the seat is engaged with the concave face of the rotating plate, even when the pressing plate repeatedly exerts the pressure against and separates from the seat, the surface sliding does not occur between the convex face of the seat and the concave face of the pressing plate. As a result, the occurrence of the unintentional hysteresis torque can be suppressed when the deflection of the elastic member begins.
- the seat has a contact part that can come into contact with the pressing plate on an outer diameter side, and the gap may be formed between the convex face of the seat and the concave face of the pressing plate when the pressing plate presses the seat to begin the deflection of the elastic member.
- the seat when the pressing plate further presses the seat, the seat may be rotated about the contact part to engage the convex face of the seat with the concave face of the pressing plate.
- the seat presses the outer diameter side of the elastic member, and after the seat is rotated to engage the convex face of the seat with the concave face of the pressing plate, the seat may press a central axis of the elastic member.
- Fig. 1 is a schematic plan view of a damper apparatus according to an embodiment of the present invention.
- Fig. 2 is a cross-sectional view taken along the line A-A of a part of the damper apparatus shown in Fig. 1 .
- Fig. 3 is a cross-sectional view taken along the line B-B of a seat 21 of the damper apparatus shown in Fig. 2 .
- Fig. 4 is a cross-sectional view taken along the line C-C of the damper apparatus shown in Fig. 2 and is a cross-sectional view of the damper apparatus in an initial state.
- Fig. 5 is a cross-sectional view taken along the line C-C of the damper apparatus shown in Fig.
- Fig. 2 is a cross-sectional view of the damper apparatus when a flanged hub comes into contact with a seat during rotation.
- Fig. 6 is a cross-sectional view taken along the line C-C of the damper apparatus shown in Fig. 2 and is a cross-sectional view of the damper apparatus when the flanged hub separates from the seat during the rotation.
- Fig. 7 is a cross-sectional view taken along the line C-C of the damper apparatus shown in Fig. 2 and is a cross-sectional view of the damper apparatus when the flanged hub presses the seat during the rotation.
- a damper apparatus 10 includes a flanged hub 11, a disk plate 12 disposed so as to face the flanged hub 11, an elastic member 14 elastically linking the flanged hub 11 and the disk plate 12 in a disk circumferential direction, and seats 21 and 22 provided on a circumferential-direction end face of the elastic member 14.
- the flanged hub 11 corresponds to a "pressing plate” of the claims
- the disk plate 12 corresponds to a "rotating plate” in the claims.
- the damper apparatus 10 is used, for example, for a clutch disk of a friction clutch disposed between an engine of an automobile and a transmission.
- a large number of corrugated leaf springs in which a facing 51 which can be sandwiched between a flywheel as a driving shaft and a pressure plate is fixed to both sides by a rivet 52, are fixed to an outer circumferential part of the disk plate 12 by the rivet.
- a transmission input shaft as an output shaft is spline-engaged with a hub of the flanged hub 11.
- the flanged hub 11 has a cylindrical hub and a flange 11F (see Fig. 2 ) which extends from an outer circumferential part of the hub in a disk radial direction.
- the disk plate 12 has a substantially disk shape and is disposed so as to face the flange 11F around the hub of the flanged hub 11.
- the elastic member 14 is a coil spring in the shown example, the elastic member 14 may be rubber or the like as long as it is an elastic body. In the following description, the elastic member 14 may be referred to as a spring.
- the disk plate 12 is provided with a plurality of windows 12W extending in the disk circumferential direction, and the flange 11F of the flanged hub 11 is provided with a plurality of notches 11W facing the windows 12W.
- the window 12W and the notch 11W facing each other is constituted by a set, and the elastic member 14 is disposed in each set of window 12W and notch 11W is disposed in a state of being deflected and shrunk by a predetermined amount. As a result, the elastic member 14 is assembled to the flanged hub 11 and the disk plate 12.
- the seats 21 and 22 are disposed between the disk circumferential-direction end face of the elastic member 14 and a disk circumferential-direction end face of the window 12W and the notch 11W in a state of being sandwiched by a reaction force of the elastic member 14. Therefore, the disk circumferential-direction end face of the window 12W and the disk circumferential-direction end face of the notch 11W can come into contact with the disk circumferential-direction end face of the elastic member 14 via the seats 21 and 22.
- a central part in a disk radial direction of one side surface of the seats 21 and 22 that abut on the disk circumferential-direction end face of the elastic member 14 is provided with spring holding protruding parts 21b and 22b fitted into the coil of the spring 14 and holding the spring 14 so that the spring holding protruding parts 21b and 22b protrude in the disk circumferential direction with respect to the side surface.
- an outer side in the disk radial direction on the side surface is provided with seat outer circumferential holding parts 21c and 22c that hold an outer circumference of the spring 14 so that the seat outer circumferential holding parts 21c and 22c protrude in the disk circumferential direction with respect to the one side surface.
- an inner side in the disk radial direction of the other side surface of the seats 21 and 22 is integrally provided with convex faces 21a and 22a having a semicircular cross section extending in a disk axial direction so that the convex faces 21a and 22a protrude in the disk circumferential direction with respect to the other side surface.
- a part 21a1 facing the disk circumferential-direction end face of the window 12W of the disk plate 12 in the convex face 21a of the seat 21 is formed to protrude in the disk circumferential direction, compared with a part 21a2 facing the disk circumferential-direction end face of the notch 11W of the flanged hub 11.
- the convex face 22a of the other seat 22 has also the same shape.
- the disk circumferential-direction end faces of the notch 11W of the flanged hub 11 and the window 12W of the disk plate 12 are each provided with concave faces 11a and 12a having a semicircular shape which is the same cross-sectional shape as the convex faces 21a and 22a so that the concave faces 11a and 12a face the convex faces 21a and 22a of the seats 21 and 22.
- the convex faces 21a and 22a of the seats 21 and 22 are fitted into the concave face 11a of the flanged hub 11 or the concave faces 12a of the disk plate 12, such that the seats 21 and 22 can be held on the flanged hub 11 or the disk plate 12 in the disk circumferential and radial directions.
- the window 12W of the disk plate 12 has a fan shape, and the convex faces 21a and 22a of the seats 21 and 22 abut on the concave face 12a of the disk plate 12 in an initial state without rotation, and an outer side part in the disk radial direction of the disk circumferential-direction end face of the window 12W is inclined by a predetermined angle ⁇ with respect to side surfaces facing the seats 21 and 22.
- the seats 21 and 22 are rotated about a contact part 26 with the disk plate 12 by a predetermined angle ⁇ with respect to the disk plate 12, such that the convex faces 21a and 22a of the seats 21 and 22 are held by being engaged with the concave face 12a of the disk plate 12.
- the notch 11W of the flanged hub 11 has a fan shape, and a gap 31 is formed between the convex faces 21a and 21b of the seats 21 and 22 and the concave face 11a of the flanged hub 11 in the state in which the convex faces 21a and 22a of the seats 21 and 22 are held by being engaged with the concave face 12a of the disk plate 12.
- the seat 21 has a contact part 25 which can come into contact with the flanged hub 11 on the outer side in the disk radial direction, and the gap 31 is formed between the convex face 21a of the seat 21 and the concave face 11a of the flanged hub 11 when the flanged hub 11 presses the seat 21 to begin the deflection of the elastic member 14.
- the disk circumferential-direction end face of the notch 11W of the flanged hub 11 is inclined by a predetermined angle ⁇ with respect to the opposed side surfaces of the seat 21 when the flanged hub 11 presses the seat 21 to begin the deflection of the elastic member 14.
- the seat 21 rotates about the contact part 25 for the flanged hub 11 by the predetermined angle ⁇ with respect to the flanged hub 11, such that the convex face 21a of the seat 21 can be held by being engaged with the concave face 11a of the flanged hub 11.
- the damper apparatus 10 itself includes a known hysteresis mechanism, and imparts the hysteresis to the twisting characteristics when the flanged hub 11 and the disk plate 12 are subjected to the relative twisting rotation and exerts a damping action on the torque transmission from the disk plate 12 to the flanged hub 11.
- the hysteresis mechanism for example, it is possible to adopt a configuration as described in paragraph 0013 of Japanese Patent No. 3381396 .
- the seats 21 and 22 are subjected to a centrifugal force directed outward in the disk radial direction, and thus are rotated about the contact part 26 with the disk plate 12 by the predetermined angle ⁇ .
- the twisting characteristics can be obtained by the rotation of the seats 21 and 22 before the twisting characteristics due to the deflection and shrinkage of the elastic member 14.
- the seats 21 and 22 are rotated by the predetermined angle ⁇ with respect to the disk plate 12, such that the convex faces 21a and 22a of the seats 21 and 22 are engaged with the concave face 12a of the disk plate 12. As a result, the seats 21 and 22 can be reliably held.
- the conventional damper apparatus has a contact part 130 at which the convex face 121a of the seat 121 and a concave face 111a of a flanged hub 111 come into contact with each other.
- the hysteresis torque similar to the designing time can be realized in the rotational vibration absorption (corresponding to the area surrounded by the one-dot chain line denoted by symbol D in Fig. 12 ) near the beginning of the deflection of the spring 14.
- the seat 21 is rotated about the contact part 25 by the predetermined angle ⁇ , and thus the convex face 21a of the seat 21 is engaged with the concave face 11a of the flanged hub 11. As a result, the seat 21 can be reliably pressed and held.
- the seat 21 presses the outer diameter side of the elastic member 14, but as shown in Fig. 7 , after the seat 21 is rotated to engage the convex face 21a of the seat 21 with the concave face 11a of the flanged hub 11, the seat 21 presses a central axis of the elastic member 14 (in other words, the outer diameter side and the inner diameter side of the elastic member 14 are uniformly pressed). In this way, the elastic member 14 is pressed stepwise, such that a torque step in the damper apparatus 10 can be reduced
- the gap is formed between the convex face 21a of the seat 21 and the concave face 11a of the flanged hub 11 in the state in which the convex face 21a of the seat 21 is engaged with the concave face 12a of the disk plate 12, even when the flanged hub 11 repeatedly exerts the pressure against and separates from the seat 21, the surface sliding does not occur between the convex face 21a of the seat 21 and the concave face 11a of the flanged hub 11. As a result, the occurrence of the unintentional hysteresis torque can be suppressed when the deflection of the elastic member 14 begins.
- the gap is formed between the convex face 21a of the seat 21 and the concave face 11a of the flanged hub 11, and since the flanged hub 11 and the seat 21 come into contact with each other at one point of the contact part 25, it is possible to reliably prevent the occurrence of the unintended hysteresis torque due to the surface sliding.
- the seat 21 when the flanged hub 11 further presses the seat 21, the seat 21 is rotated about the contact part 25 to engage the convex face 21a of the seat 21 with the concave face 11a of the flanged hub 11, such that the seat 21 can be reliably pressed and held.
- the seat 21 presses the outer diameter side of the elastic member 14, and since the seat 21 is rotated to engage the convex face 21a of the seat 21 with the concave face 11a of the flanged hub 11 and then the seat 21 presses the central axis of the elastic member 14, the elastic member 14 is pressed stepwise, such that the torque step of the damper apparatus 10 is reduced.
- the part 21a1 facing the disk circumferential-direction end face of the window 12W of the disk plate 12 in the convex face 21a of the seat 21 is formed to protrude in the disk circumferential direction, compared with the part 21a2 facing the disk circumferential-direction end face of the notch 11W of the flanged hub 11, but the present invention is not limited thereto.
- the concave face 11a of the flanged hub 11 may be formed to be recessed in the disk circumferential direction as compared with the concave face 12a of the disk plate 12.
- the gap 31 can be formed between the convex face 21a of the seat 21 and the concave face 11a of the flanged hub 11 in the state in which the convex face 21a of the seat 21 is engaged with the concave face 12a of the disk plate 12, such that the same action and effect as those of the above-described embodiment can be obtained.
- the flanged hub 11 corresponds to the "pressing plate” of the claims
- the disk plate 12 corresponds to the "rotating plate” in the claims
- the present invention is not limited thereto.
- the disk plate 12 may correspond to the "pressing plate” of the claims
- the flanged hub 11 may correspond to the "rotating plate” in the claims .
- the torque input to the flanged hub 11 is transmitted to the disk plate 12 via the elastic member 14 while being buffered by the deflection and contraction of the elastic member 14, but even in such an aspect, the same action and effect as the above-described embodiment can be obtained.
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Operated Clutches (AREA)
- Springs (AREA)
Claims (2)
- Appareil amortisseur (10), comprenant :une plaque de pression (11) ;une plaque rotative (12) disposée de manière à faire face à la plaque de pression (11) ;une élément élastique (14) reliant élastiquement la plaque de pression (11) et la plaque rotative (12) dans une direction circonférentielle ; etdes premier et deuxième sièges (21, 22), prévu chacun sur une face d'extrémité de direction circonférentielle de l'élément élastique (14),dans lequel chaque siège (21, 22) a une face convexe (21a) faisant saillie dans la direction circonférentielle sur un côté de diamètre intérieur,la plaque de pression (11) et la plaque rotative (12) ont chacune des faces concaves (11a, 12a) en mesure de se mettre en prise avec la face convexe (21a) de chaque siège (21, 22), etavec les faces convexes (21a, 22a) des sièges (21, 22) en prise avec la faces concaves (12a) de la plaque rotative (12), un espacement (31) est formé entre la face convexe (21a) du premier siège (21) et la face concave (11a) de la plaque de pression (11),caractérisé en ce quele premier siège (21) a une partie de contact (25) en mesure d'entrer en contact avec la plaque de pression (11) sur un côté de diamètre extérieur, etconfiguré de sorte qu'un écart est formé entre la face convexe (21a) du premier siège (21) et la face concave (11a) de la plaque de pression (11) lorsque la plaque de pression (11) appuie sur le premier siège (21) pour commencer une déviation de l'élément élastique (14),dans lequel lorsque la plaque de pression (11) appuie encore plus sur le premier siège (21), le premier siège (21) est configuré pour tourner autour de la partie de contact (25) pour mettre en prise la face convexe (21a) du premier siège (21) avec la face concave (11a) de la plaque de pression (11).
- Appareil amortisseur selon la revendication 1,
dans lequel lorsque la plaque de pression (11) appuie sur le siège (21) pour commencer la déviation de l'élément élastique (14), le premier siège (21) est configuré pour appuyer sur un côté de diamètre extérieur de l'élément élastique (14), et après que le premier siège (21) a été mis en rotation pour mettre en prise la face convexe (21a) du premier siège (21) avec la face concave (11a) de la plaque de pression (11), le premier siège (21) est configuré pour appuyer sur un axe central de l'élément élastique (14).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016047875A JP6690318B2 (ja) | 2016-03-11 | 2016-03-11 | ダンパ装置 |
PCT/JP2017/006283 WO2017154554A1 (fr) | 2016-03-11 | 2017-02-21 | Appareil amortisseur |
Publications (3)
Publication Number | Publication Date |
---|---|
EP3428478A1 EP3428478A1 (fr) | 2019-01-16 |
EP3428478A4 EP3428478A4 (fr) | 2019-04-17 |
EP3428478B1 true EP3428478B1 (fr) | 2022-08-03 |
Family
ID=59790286
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17762897.1A Active EP3428478B1 (fr) | 2016-03-11 | 2017-02-21 | Appareil amortisseur |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3428478B1 (fr) |
JP (1) | JP6690318B2 (fr) |
WO (1) | WO2017154554A1 (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7087480B2 (ja) * | 2018-03-12 | 2022-06-21 | 株式会社アイシン | ダンパ装置 |
JP7497623B2 (ja) * | 2020-06-19 | 2024-06-11 | 株式会社アイシン | ダンパ装置 |
SE2350248A1 (en) * | 2023-03-06 | 2024-01-12 | Volvo Truck Corp | Propeller shaft assembly for a motor vehicle |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01146040U (fr) * | 1988-03-31 | 1989-10-06 | ||
JP3264294B2 (ja) * | 1993-06-24 | 2002-03-11 | 株式会社エクセディ | 捩じり振動減衰装置 |
JP2003278792A (ja) * | 2002-03-26 | 2003-10-02 | Aisin Seiki Co Ltd | 捩じれ緩衝ディスク |
JP4925893B2 (ja) * | 2007-03-30 | 2012-05-09 | 日産自動車株式会社 | スプリングシートおよびダンパーディスク組立体 |
CN102667207B (zh) * | 2009-12-11 | 2014-12-10 | 丰田自动车株式会社 | 扭转缓冲装置 |
JP5625676B2 (ja) * | 2010-09-24 | 2014-11-19 | アイシン精機株式会社 | トルク変動吸収装置 |
WO2012137234A1 (fr) * | 2011-04-01 | 2012-10-11 | トヨタ自動車株式会社 | Dispositif d'amortissement des vibrations en torsion |
-
2016
- 2016-03-11 JP JP2016047875A patent/JP6690318B2/ja active Active
-
2017
- 2017-02-21 WO PCT/JP2017/006283 patent/WO2017154554A1/fr active Application Filing
- 2017-02-21 EP EP17762897.1A patent/EP3428478B1/fr active Active
Also Published As
Publication number | Publication date |
---|---|
JP6690318B2 (ja) | 2020-04-28 |
EP3428478A1 (fr) | 2019-01-16 |
WO2017154554A1 (fr) | 2017-09-14 |
JP2017161036A (ja) | 2017-09-14 |
EP3428478A4 (fr) | 2019-04-17 |
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